package controller;

import com.alibaba.fastjson2.JSON;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import pojo.User;
import service.UserService;
import utils.LayData;

import java.util.List;

@Controller
public class AsyncUserController {

    @Autowired
    private UserService userService;

    public String toList(){
        return "asyncuser/list";
    }

    @ResponseBody
    public String list(User user, @RequestParam(value = "page", defaultValue = "1") Integer currentPage,
                       @RequestParam(value = "limit", defaultValue = "10")Integer pageSize, Model model){
        // 查询数据
        int totalCount = userService.count(user);
        // 计算偏移量
        int offset = (currentPage - 1) * pageSize;
        List<User> users = userService.findAll(user, offset, pageSize);
        LayData layData = new LayData(0,"查询成功",totalCount,users);
        return JSON.toJSONString(layData);
    }

    public String toAdd(){
        return "asyncuser/add";
    }

    @ResponseBody
    public String addSave(User user){
        int result = userService.addUser(user);
        if (result > 0) {
            return JSON.toJSONString(new LayData(0,"添加成功"));
        } else {
            return JSON.toJSONString(new LayData(500,"添加失败"));
        }
    }
    public String delete(@PathVariable("id") Integer id){
        int result = userService.deleteUserById(id);
        if (result > 0) {
            return "redirect:/user/list/1";
        } else {
            return "error";
        }
    }
    public String toUpdate(@PathVariable("id") Integer id, Model model){
        model.addAttribute("user",userService.findUserById(id));
        return "user/update";
    }

    public String updateSave(User user){
        int result = userService.updateUser(user);
        if (result > 0) {
            return "redirect:/user/list/1";
        } else {
            return "error";
        }
    }



}
